The other post was getting a bit lenghty.
I had radiation burns to the right side of my neck. They do not sound as bad as yours though. The hospital also put some sort of dressing that cooled the area and also removed the dead skin, though didnt seem as bad as yours. I could only put a Eucerin type cream on once a day even though I wanted to more. I had twice daily radiation and there didnt seem to be enough time in between. There probably was but didnt want to chance it
Sorry to hear all you are going thru. Prayers and Best Wishes